VOLVO 240 1990 Manual Online

Volvo 1990 240 Model

Brake fluid

Without removing the cap, check that the level is above the MIN mark. Br\
ake fluid DOT 4. See "Brake
fluid" section.

Battery

Check level in conjunction with normal service or once a year. Electroly\
te level 1/4" - 3/8"(5-10 mm)
above plates. Use distilled water. Never add acid.
Warning:
Battery gases are explosive if brought in contact with open flame or
sparks.


Washer fluid Coolant reservoir

Washer fluid

Washer fluid reservoir. Water and solvent (in wintertime, use windshiel\
d washer anti-freeze). See
"Washer fluid reservoir" section.
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Volvo 1990 240 Model
pg. 62 Engine Oil, 5,000-mile (8,000-km) oil/oil filter change interva\
l
Oil quality

According to API SG or alternatively API SF.
l Oils with designations SO/CD, SF/CC and SF/CD comply with these requirem\
ents.
Viscosity (stable ambient temperatures):


Volvo recommends the use of energy-conserving oils. Look for the API lab\
el. Synthetic or
semisynthetic oils may be used if their specifications comply with the o\
il quality requirements.
Volvo does not recommend oil additives, as they can adversely affect the\
engine.

Changing oil and oil filter

Oil and oil filter are first changed at the 600-1,200 mile (1,000-2,000\
km) service. Thereafter, changes
should be made as specified by this table:

Capacity

Including oil filter: 4.0 US qts = 3.85 litres
Check oil level when filling fuel.
SAE 15W/40 is recommended for use in driving conditions that raise oil t\
emperature and increase oil
consumption (i.e., mountain driving, trailer towing).
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Volvo 1990 240 Model
Note: SAE 15W/40 must not be used at low ambient temperatures; see visco\
sity
chart.

Volvo recommends the use of oils with the American Petroleum Institute (\
API) label. This
label certifies that the oil conforms to the applicable standards and sp\
ecifications of the
API.
If driving conditions include: Then the correct oil/oil filter change interval
is:
l Extended periods of idling and/or low-speed
operation
l Frequent short trips (less than 7 miles = 11 km)
l Extended periods of driving in dusty and/or sandy
areas
l Trailer towing
l Driving in mountainous areas EVERY 3 MONTHS
or 5,000 miles = 8,000 km
WHICHEVER COMES FIRST
l Primarily highway driving
l Frequent trips of longer than 7 miles = 11 km
EVERY 6 MONTHS
or 5,000 miles = 8,000 km
WHICHEVER COMES FIRST
pg. 63 Cooling system
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Volvo 1990 240 Model

Changing coolant

Every two years or 30,000 miles (48,000 km) the cooling system should \
be drained, flushed and refilled.
Remove the expansion tank cap. Open the drain cock on right side of the \
engine block and disconnect
the lower radiator hose.

Fill coolant through the expansion tank.
The heater controls should be fully open when draining and filling.
Add coolant until the level is up to the MAX mark or slightly above.

Start engine and run until hot. Check the cooling system connections for\
tightness. Also re-check the
coolant level. Capacity: 9.9 US qts. = 9.4 liters (manual transmission \
models); 9.7 US qts = 9.2 liters
(automatic transmission models)

Cooling system, hoses and connections

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Volvo 1990 240 Model
Check all cooling system hoses and connections for defects or deteriorat\
ion of hoses and loose clamps or
fittings.



Drive belts

The belt tension can be checked by depressing the fan belt at a point mi\
dway between the alternator and
fan pulleys as illustrated. It should be possible to press down the belt\
about 1/4" - 3/8" (5-10 mm). This
also applies to other drive belts on the engine.
If drive belts are replaced, recheck belt tension after driving 600 - 1,\
200 miles (1,000 - 2,000 km).




Contents | Top of Page
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Volvo 1990 240 Model
pg. 64 Service requirements
Engine Mechanical Components

Torque manifold nuts

The manifold nuts should be torqued at the 600-1,200 mile (1,000-2,000 \
km) inspection. A loose
manifold could alter air/fuel ratio and cause an increase in emission an\
d/or poor driveability.

Valves

The valve clearance should be checked every 30,000 miles (48,000 km). \

Vacuum fittings, hoses and connections

Unstable idle, misfiring or poor emission control is often caused by lea\
king vacuum hoses or
connections. Check hoses and connections on distributor vacuum unit, EGR\
valve (where applicable)
and connections on heater control servo systems and hydraulic brake serv\
o.

Exhaust Gas Recirculation (EGR)

This system operates by returning some of the exhaust gases to the engin\
e to be recombusted: since this
lowers the combustion temperature the amount of nitrogen oxides released\
into the atmosphere is
reduced.
The EGR valve should be cleaned at the 60,000 mile inspection and therea\
fter cleaned every 25,000
miles (40,000 km).

Timing belt

The timing belt tensioner should be adjusted at the 600-1,200 mile (1,0\
00-2,000 km) inspection.
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Volvo 1990 240 Model
pg. 65 Servicing
Engine Fuel System


The fuel injection system is all-electronic and is microprocessor contro\
lled. It can continually
compensate for variations in engine load, speed and temperature to give \
the best economy and power.
The most unique feature of the system is the air mass meter which measur\
es the mass of the inducted air
instead of the volume. In this way the system can make instantaneous adj\
ustments for changes in air
temperature or density, thus always assuring the best economy with the l\
owest possible exhaust
emissions. pg. 66 Servicing
Special Instructions for work on the fuel injection system

Extreme cleanliness is essential when working on the injection system. G\
reat care must be observed.
Injection system service should be handled by qualified technicians, usi\
ng equipment intended for this
service.

Fuel (line) filter

We recommend that this filter be changed every 60,000 miles (96,000 km)\
. The filter is replaced as one
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Volvo 1990 240 Model
complete unit.
Replace more frequently if contaminated fuel was introduced into the tan\
k.

Fuel system cap, tank, lines and connections

The ability of the fuel system to control hydrocarbon emissions is depen\
dent largely on a leak-free
system. Check for proper sealing of gasoline filler cap which contains "\
O"-ring type seals. Check all
evaporative hoses in vehicle for tightness. Check fuel lines under vehic\
le. Repair if necessary.

Air cleaner

Replace the air cleaner cartridge every 30,000 miles (48,000 km). The \
cartridge should be replaced more
often when driving under dirty and/or dusty conditions.
The filter cannot be cleaned and should always be replaced with a new on\
e.

Checking and adjusting idle speed

Your Volvo is equipped with an electronically controlled idle speed syst\
em that requires no period
checking or adjustment.

Lamda-sond (oxygen sensor) system

This is an emission control system designed to reduce emissions and impr\
ove fuel economy. An oxygen
sensor monitors the composition of the exhaust gases leaving the engine.\
The exhaust gas analysis is fed
into an electronic unit which continuously influences the amount of fuel\
injected. This adjusts the air-
fuel ratio to provide optimum conditions for combustion and efficient re\
duction of the three major
pollutants (hydrocarbons, carbon monoxide and nitrogen oxides) through\
a 3-way catalytic converter. pg. 67 Servicing
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Volvo 1990 240 Model


Oxygen Sensor

On the B230F engines, the oxygen sensor (Lambda-sond) is electrically \
heated. The use of a PTC
(Positive Temperature Coefficient) element to heat the Lambda-sond ens\
ures a shorter warm up time
and continuous operation at its working temperature.
This type of Lambda-sond does not require periodic replacement.

Catalytic Converter

This is a supplementary device in the exhaust system, designed to reduce\
exhaust emissions.
This device is mainly a container with a ceramic material insert, design\
ed to let the exhaust gases pass
through channels in the insert. The channel walls are covered by a thin \
layer of platinum and rhodium.
These metals act as catalysts, permitting a chemical action to occur wit\
hout actually taking part in it.
The carbon monoxide content will increase if the Catalytic Converter is \
damaged.
CAUTION:
Vehicles with Catalytic Converter must use unleaded fuel only. Otherwise\
the Catalytic Converter will
become damaged and ineffective.

Torque catalytic converter mounting bolts

The Catalytic Converter mounting bolts should be re-torqued at the 600-1\
,200 mile (1000-2000) km
inspection.
pg. 68 Servicing
Engine Crankcase Ventilation System
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Volvo 1990 240 Model

Crankcase ventilation

The engine is provided with positive crankcase ventilation (PCV) which\
prevents crankcase gases from
being released into the atmosphere. Instead, the crankcase gases are adm\
itted to the intake manifold and
cylinders.

B230F
1. PCV nipple
2. Flame
Guard
3. Oil trap

PCV system, B230F engine

The PCV nipple in the intake manifold should be cleaned after 60,000 mil\
es (96,000 km). pg. 69 Servicing
Engine Evaporative Emissions

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